#0F1B4B#0F1B4B

#0F1B4B is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.6% C 0.090 H 268.3°. Best body text is #FFFFFF at 16.42:1 contrast (WCAG AA passes).

Color values

HEX	#0F1B4B
RGB	rgb(15, 27, 75)
HSL	hsl(228, 67%, 18%)
HSV	hsv(228, 80%, 29%)
CMYK	cmyk(80%, 64%, 0%, 70.6%)
CIE-LAB	lab(11.91, 14.39, -31.33)
CIE-LCH	lch(11.91, 34.47, 294.67°)
OKLab	oklab(24.61% -0.0027 -0.0903)
OKLCH	oklch(24.61% 0.09 268.3)
XYZ	xyz(1.8585, 1.3932, 6.8262)
Luminance	0.0139 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F1B4B #4B3F0F

analogous

#0F394B #0F1B4B #210F4B

triadic

#0F1B4B #4B0F1B #1B4B0F

tetradic

#0F1B4B #4B0F39 #4B3F0F #0F4B21

square

#0F1B4B #4B0F39 #4B3F0F #0F4B21

split-complementary

#0F1B4B #4B210F #394B0F

monochromatic

#05091A #05091A #0F1B4B #192D7E #2340B1

Accessibility & contrast

On white

16.42

#0F1B4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#0F1B4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F1B4B

16.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F1B4B	#FFFFFF	#000000	##FFFFFF
##0F1B4B	1.00	16.42	1.28	16.42
#FFFFFF	16.42	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00224D

Deuteranopia (green-blind)

#001D4A

Tritanopia (blue-blind)

#00272F

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #0f1b4b;
/* rgb */ color: rgb(15, 27, 75);
/* oklch */ color: oklch(24.6% 0.090 268.3);

Tailwind

colors: {
  custom: {
    50: '#57567e',
    500: '#0f1b4b',
    950: '#000000',
  },
}

SCSS

$custom: #0f1b4b;
$custom-light: #57567e;
$custom-dark: #000000;

JSON

{
  "hex": "#0f1b4b",
  "rgb": {
    "r": 15,
    "g": 27,
    "b": 75
  },
  "hsl": {
    "h": 228,
    "s": 66.667,
    "l": 17.647
  },
  "oklch": {
    "l": 0.24608,
    "c": 0.09039,
    "h": 268.3
  },
  "luminance": 0.01393
}

Semantic roles & 50–950 ramp

primary

#0F1B4B

secondary

#857430

accent

#C73EEA

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #0F1B4B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →